Siemens S7-300 - 3 Configuration and parameter assignment; 3.1 Configuring

Cam control basics
3.5 Interfaces of the cam controller
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
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3.5 Interfaces of the cam controller
Overview
The graphic below contains a schematic diagram of the main interfaces to illustrate the
relationship between data, inputs, and outputs.
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Figure 3-4 Interfaces of FM 352
No. Description
①
The FM 352 cam processing functions calculate the cam identifier bits based on switching
conditions and actual values. The module also determines the track results according to the
assignment of the cams to the tracks.
②
If you assigned track 0 or 1 as a counter cam track, the track result of the cam controller (point
1) is logically linked to the counter result in order to produce the track identifier bit. The track
identifier bit is otherwise equivalent to the track result.
③
If you assigned track 2 as a brake cam track, the track result of the cam controller (point 1) is
logically linked to input I0 to produce the track identifier bit. The track identifier bit is otherwise
equivalent to the track result.